Growing body of research links earthquakes to wells used to dispose of wastewater

Oklahoma regulators, in an attempt to curb earthquakes rocking the area, have asked dozens of oil-and-gas companies to cut the amount of wastewater they inject into hundreds of disposal wells across the state.

The Oklahoma Corporation Commission in recent weeks has requested that companies including Sandridge Energy Inc. and Chesapeake Energy Corp., among others, reduce their wastewater injections underground by more than 500,000...